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PermaTherm EPS
PermaTherm EPS is the “core” of our system. It isn't just foam insulation; it is an innovative building material that lends to the design and structural integrity of many building projects. Since the 1950’s, EPS has been recognized as a mainstream insulation material. Over the last decade new applications using EPS have exploded. EPS now serves as a powerful design element.
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PermaTherm EPS DataSheet | DOWNLOAD PRINTER FRIENDLY VERSION |
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PermaTherm EPS Physical Properties | DOWNLOAD PRINTER FRIENDLY VERSION |
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Green EPS WhitePaper | DOWNLOAD PRINTER FRIENDLY VERSION |
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EPS possesses the physical and mechanical properties ideal for most insulation specifications. EPS insulation is easily fabricated to meet specific design and dimensional requirements. PermaTherm produces its own expanded polystyrene material. Quality control is assured through our state-of-the-art expanding, molding, and curing facility. PermaTherm only only UL approved raw materials. We use only virgin EPS in our pipe insulation products, resulting in a uniform, homogeneous material with no pockets or loose beads. There are no exotic blowing agents or volatile chemicals that may react negatively with the insulation materials or piping itself.
The end result is an absolutely superior insulating core, that is user-friendly and has excellent thermal resistance and thermal conductivity values which are long lasting. Further, because of its light weight, it is easily shipped, stored, handled and installed on the job site. Due to its design flexibility and versatility, it can be cut into sheets, slabs or any design requirement to meet specific building code standards. When installed properly, call-backs and repairs from product failures are virtually eliminated. There are millions of linear feet of PermaTherm EPS in use today that remain problem free for building owners, insulation contractors and refrigeration engineers. Specify PermaTherm as your choice.
PermaTherm insulation products have been tested by Underwriters Laboratories, Inc. and meet the requirements of the Standard Mechanical Code and the International Mechanical Code for pipe and equipment insulation.
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Specification Reference:
ASTM C 578-92 |
PROPERTY |
UNITS
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ASTM Test
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TYPE I
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TYPE VIII
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TYPE II
|
TYPE IX
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| Density, minimum |
lb/ft3 |
D 303 or
D 1622 |
0.90 |
1.15 |
1.35 |
1.80 |
| Density Range |
lb/ft3 |
|
0.90 - 1.14 |
1.15-1.34 |
1.35-1.79 |
1.80-2.20 |
| Thermal Conductivity- K Factor |
25F |
BTU.in/hr.ft2.°F |
C 177 or
C 518 |
0.23 |
0.22 |
0.21 |
0.20 |
| 40F |
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|
0.24 |
0.235 |
0.22 |
0.21 |
| 75F |
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|
0.26 |
0.255 |
0.24 |
0.23 |
| Thermal resistance- R-Value @ 1 in. |
25F |
hr.ft2.°F/BTU |
|
4.35 |
4.54 |
4.76 |
5.00 |
| 40F |
4.17 |
4.25 |
4.55 |
4.76 |
| 75F |
3.85 |
3.92 |
4.17 |
4.35 |
Strength Properties |
| Compressive 10% Deformation |
lb/in2 |
D 1621 |
10-14 |
13-18 |
15-21 |
25-33 |
| Flexural |
lb/in2 |
C 203 |
25-30 |
30-38 |
40-50 |
50-75 |
| Tensile |
lb/in2 |
D 1623 |
16-20 |
17-21 |
18-22 |
23-27 |
| Shear |
lb/in2 |
D 723 |
18-22 |
23-25 |
26-32 |
33-37 |
| Shear Modulus |
lb/in2 |
--- |
280-320 |
370-410 |
460-500 |
600-640 |
| Modulus of Elasticity |
lb/in2 |
--- |
180-220 |
250-310 |
320-360 |
460-500 |
Moisture Resistance |
| Water Vapor Transmission |
perm-in |
E 96 |
2.0-5.0 |
1.5-3.5 |
1.0-3.5 |
0.6-2.0 |
| Water Absorption (vol.) |
% |
C 272 |
< 4.0 |
< 3.0 |
< 3.0 |
< 2.0 |
| Capillarity |
--- |
--- |
none |
none |
none |
none |
| Coefficient of Thermal Expansion |
(in/in)/°F |
D 696 |
0.000035 |
0.000035 |
0.000035 |
0.000035 |
| Maximum Service Temperature |
°F |
| Long-term Exposure |
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167 |
167 |
167 |
167 |
| Intermittent Exposure |
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180 |
180 |
180 |
180 |
| Oxygen Index |
% |
D 2863 |
24.0 |
24.0 |
24.0 |
24.0 |
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